CN203932978U - Steel grating press welder welded transformer protection control circuit - Google Patents
Steel grating press welder welded transformer protection control circuit Download PDFInfo
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- CN203932978U CN203932978U CN201420364857.7U CN201420364857U CN203932978U CN 203932978 U CN203932978 U CN 203932978U CN 201420364857 U CN201420364857 U CN 201420364857U CN 203932978 U CN203932978 U CN 203932978U
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- Prior art keywords
- coil
- relay
- controllable silicon
- rectifier bridge
- diode
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 45
- 239000010703 silicon Substances 0.000 claims abstract description 45
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 230000000977 initiatory effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of steel grating press welder welded transformer protection control circuit, relate to silicon controlled control circuit.The utility model comprises the first controllable silicon, the second controllable silicon, the 3rd controllable silicon, electric capacity, rectifier bridge, relay, coil, diode, and the two ends of rectifier bridge are connected to relay coil; Between zero line and live wire, be connected to the relay contact that can link, relay contact audible-visual annunciator.The utility model utilizes silicon controlled conducting and disconnects the main welding source switch of control or sound and light alarm; avoid welded transformer edge aging and cause inner turn-to-turn short circuit initiating failure, scaling loss; be conducive to the protection of welded transformer; reducing maintenance searches the time; improve the useful life of power-supply system, reduce working service cost.
Description
Technical field
The utility model relates to silicon controlled control circuit.
Background technology
Steel grating plate is formed by certain arranged with interval separately by load band steel and the cross bar that is orthogonal to load band steel, and each intersection point of load band steel and cross bar, is welded and fixed by press welder.
At present, domestic steel grating pressure welding device is the welding source that adopts SCR control resistance welded mostly, adopts in the course of the work and controls silicon controlled conducting and disconnect the operation that realizes welded transformer.There is following problem in this mode: when welding is carried out, controllable silicon is in conducting state, because electric current in every step welding process affects silicon controlled, may cause silicon controlled to puncture, this situation can be found in time when normal crimping, be difficult in other cases discovering, if the harm that this situation causes welding source after occurring is very large, due to for a long time, to a certain phase transformer long time loading, be easy to cause this phase welded transformer ageing of insulation and cause inner turn-to-turn short circuit initiating failure, scaling loss.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel grating press welder welded transformer protection control circuit; utilize silicon controlled conducting and disconnect the main welding source switch of control or acoustic-optic alarm; avoid welded transformer edge aging and cause inner turn-to-turn short circuit initiating failure, scaling loss; be conducive to the protection of welded transformer; reducing maintenance searches the time; improve the useful life of power-supply system, reduce working service cost.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of steel grating press welder welded transformer protection control circuit, comprise the first controllable silicon VT1, the second controllable silicon VT2 and the 3rd controllable silicon VT3, one end of described the first controllable silicon VT1 is connected with A, the other end of the first controllable silicon VT1 is divided into two-way, one tunnel is connected in series capacitor C 1 and the first rectifier bridge successively, through relay J 0, is connected with B; One tunnel connects first coil L1 primary coil one end, first another termination of coil L1 primary coil B phase, and the anode tap utmost point of first coil L1 secondary coil one termination the first diode D11, the negative electrode of the first diode D11 connects positive source;
One end of the second controllable silicon VT2 is connected with B, and the other end of the second controllable silicon VT2 is divided into two-way, and a road is connected in series capacitor C 2 and the second rectifier bridge successively, through relay J 0, is connected with C; One tunnel connects second coil L2 primary coil one end, second another termination of coil L2 primary coil C phase, the anode tap utmost point of second coil L2 secondary coil one termination the second diode D22, the negative electrode of the second diode D22 connects positive source, second another termination power cathode of coil L2 secondary coil;
One end of the 3rd controllable silicon VT3 is connected with C, and the other end of the 3rd controllable silicon VT3 is divided into two-way, and a road is connected in series capacitor C 3 and the 3rd rectifier bridge successively, through relay J 0, is connected with A; One tunnel connects tertiary coil L3 primary coil one end, another termination of tertiary coil L3 primary coil A phase, the anode tap utmost point of tertiary coil L3 secondary coil one termination the 3rd diode D33, the negative electrode of the 3rd diode D33 connects positive source, another termination First Line circle of tertiary coil L3 secondary coil L1 secondary coil other end;
The two ends that the two ends that the two ends of the first rectifier bridge are connected to relay coil J 1, the second rectifier bridge are connected to relay coil J 2, the three rectifier bridges are connected to relay coil J 3;
Between zero line and live wire, be connected to relay contact J 1-1, J 2-1, the J 3-1 that can link; Relay contact J 1-1 is connected in series relay J 4, relay contact J 2-1 serial connection buzzer H, relay contact J 3-1 serial connection light crossing-signal O;
Positive source and power cathode respectively by and the resistance R 2, the resistance R 1 that connect join with ground.
Described the first rectifier bridge comprises diode D1, D2, D3, D4;
The second rectifier bridge comprises diode D5, D6, D7, D8;
The 3rd rectifier bridge comprises diode D9, D10, D11, D12.
The beneficial effect that adopts technique scheme to produce is: after a certain controllable silicon damage or false triggering, send sound and light alarm signal, be conducive to the protection to welded transformer, and can determine that silicon controlled specifically damages position; Favourable protection welding source, reduces maintenance and searches the time, improves the useful life of power-supply system, reduces working service cost.
Accompanying drawing explanation
Fig. 1 is control principle circuit diagram of the present utility model;
Fig. 2 is the control principle circuit diagram at the utility model sound and light alarm position.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model utilizes silicon controlled conducting and disconnection to install portions of electronics element additional and controls main welding source switch or acoustic-optic alarm in conjunction with PLC.When having welding enabling signal, J0 relay is worked in advance, with the end of working, finishes.Thereby while guaranteeing normally to work, protective device is not activated, and sound and light alarm is not worked, main power switch can not disconnect, and guarantees the normal operation of equipment.
As shown in Figure 1 and Figure 2, the utility model comprises the first controllable silicon VT1, the second controllable silicon VT2 and the 3rd controllable silicon VT3, one end of described the first controllable silicon VT1 is connected with A, the other end of the first controllable silicon VT1 is divided into two-way, one tunnel is connected in series C1 and the first rectifier bridge successively, through relay J 0, is connected with B; One tunnel connects first coil L1 primary coil one end, first another termination of coil L1 primary coil B phase, and the anode tap utmost point of first coil L1 secondary coil one termination the first diode D11, the negative electrode of the first diode D11 connects positive source;
One end of the second controllable silicon VT2 is connected with B, and the other end of the second controllable silicon VT2 is divided into two-way, and a road is connected in series C2 and the second rectifier bridge successively, through relay J 0, is connected with C; One tunnel connects second coil L2 primary coil one end, second another termination of coil L2 primary coil C phase, the anode tap utmost point of second coil L2 secondary coil one termination the second diode D22, the negative electrode of the second diode D22 connects positive source, second another termination power cathode of coil L2 secondary coil;
One end of the 3rd controllable silicon VT3 is connected with C, and the other end of the 3rd controllable silicon VT3 is divided into two-way, and a road is connected in series capacitor C 3 and the 3rd rectifier bridge successively, through relay J 0, is connected with A; One tunnel connects tertiary coil L3 primary coil one end, another termination of tertiary coil L3 primary coil A phase, the anode tap utmost point of tertiary coil L3 secondary coil one termination the 3rd diode D33, the negative electrode of the 3rd diode D33 connects positive source, another termination First Line circle of tertiary coil L3 secondary coil L1 secondary coil other end;
The two ends that the two ends that the two ends of the first rectifier bridge are connected to relay coil J 1, the second rectifier bridge are connected to relay coil J 2, the three rectifier bridges are connected to relay coil J 3;
Between zero line and live wire, be connected to relay contact J 1-1, J 2-1, the J 3-1 that can link; Relay contact J 1-1 is connected in series relay J 4, relay contact J 2-1 serial connection buzzer H, relay contact J 3-1 serial connection light crossing-signal O;
Positive source and power cathode respectively by and the resistance R 2, the resistance R 1 that connect join with ground.
The first rectifier bridge comprises diode D1, D2, D3, D4;
The second rectifier bridge comprises diode D5, D6, D7, D8;
The 3rd rectifier bridge comprises diode D9, D10, D11, D12.
Operation principle is as follows:
When wherein a certain example mutually (as A phase) controllable silicon puncture short or improper triggering; protective device enters running status immediately; and start corresponding relay work; send the main switching control of sound and light signal or disconnection welding source simultaneously; protection power source system also can inform that a certain phase controllable silicon damages effectively, can make maintenance search time shorten.
During relay J 0 welding, work, be controllable silicon while normally working relay J 0 in off-state, all the other puncture in relay J 0 conducting state the capacitance decompression being now connected with this if any certain phase controllable silicon, through the rectifier bridge rectification being connected with this, drive this phase relay work, trigger audible-visual annunciator and send sound and light alarm, or directly control welding source disconnection, effectively avoid the unnecessary damage of welded transformer, extend the useful life of transformer.This place's relay J 0 needs program control, and in advance in welding enabling signal 0.5 second.
Claims (2)
1. a steel grating press welder welded transformer is protected control circuit, it is characterized in that: comprise the first controllable silicon VT1, the second controllable silicon VT2 and the 3rd controllable silicon VT3, one end of described the first controllable silicon VT1 is connected with A, the other end of the first controllable silicon VT1 is divided into two-way, one tunnel is connected in series capacitor C 1 and the first rectifier bridge successively, through relay J 0, is connected with B; One tunnel connects first coil L1 primary coil one end, first another termination of coil L1 primary coil B phase, and the anode tap utmost point of first coil L1 secondary coil one termination the first diode D11, the negative electrode of the first diode D11 connects positive source;
One end of the second controllable silicon VT2 is connected with B, and the other end of the second controllable silicon VT2 is divided into two-way, and a road is connected in series capacitor C 2 and the second rectifier bridge successively, through relay J 0, is connected with C; One tunnel connects second coil L2 primary coil one end, second another termination of coil L2 primary coil C phase, the anode tap utmost point of second coil L2 secondary coil one termination the second diode D22, the negative electrode of the second diode D22 connects positive source, second another termination power cathode of coil L2 secondary coil;
One end of the 3rd controllable silicon VT3 is connected with C, and the other end of the 3rd controllable silicon VT3 is divided into two-way, and a road is connected in series capacitor C 3 and the 3rd rectifier bridge successively, through relay J 0, is connected with A; One tunnel connects tertiary coil L3 primary coil one end, another termination of tertiary coil L3 primary coil A phase, the anode tap utmost point of tertiary coil L3 secondary coil one termination the 3rd diode D33, the negative electrode of the 3rd diode D33 connects positive source, another termination First Line circle of tertiary coil L3 secondary coil L1 secondary coil other end;
The two ends that the two ends that the two ends of the first rectifier bridge are connected to relay coil J 1, the second rectifier bridge are connected to relay coil J 2, the three rectifier bridges are connected to relay coil J 3;
Between zero line and live wire, be connected to relay contact J 1-1, J 2-1, the J 3-1 that can link; Relay contact J 1-1 is connected in series relay J 4, relay contact J 2-1 serial connection buzzer H, relay contact J 3-1 serial connection light crossing-signal O;
Positive source and power cathode respectively by and the resistance R 2, the resistance R 1 that connect join with ground.
2. steel grating press welder welded transformer protection control circuit according to claim 1, is characterized in that: described the first rectifier bridge comprises diode D1, D2, D3, D4;
The second rectifier bridge comprises diode D5, D6, D7, D8;
The 3rd rectifier bridge comprises diode D9, D10, D11, D12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364857.7U CN203932978U (en) | 2014-07-03 | 2014-07-03 | Steel grating press welder welded transformer protection control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364857.7U CN203932978U (en) | 2014-07-03 | 2014-07-03 | Steel grating press welder welded transformer protection control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932978U true CN203932978U (en) | 2014-11-05 |
Family
ID=51828733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364857.7U Expired - Fee Related CN203932978U (en) | 2014-07-03 | 2014-07-03 | Steel grating press welder welded transformer protection control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932978U (en) |
-
2014
- 2014-07-03 CN CN201420364857.7U patent/CN203932978U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170703 |